TCA9617A: VCCA voltage and VCCB voltage

Lilian Chang

Intellectual 1555 points

Part Number: TCA9617A
Other Parts Discussed in Thread: TCA9617B

Hi Team,

In TCA9617A/B, if VCCA supply voltage must < VCCB supply voltage?

What's the difference with TCA9617A and TCA9617B?

Thank you.

over 7 years ago

0 Miguel Robertson over 7 years ago

TI__Guru 62920 points

Hi Lilian,

The B version is designed so that the I2C bus is high-impedance when powered off, so it is recommended over the A version of the device. Both versions require that VCCA be less than or equal to VCCB. Please let me know if you have any further questions.

Regards,
Max

Interface

Interface forum

TCA9617A: VCCA voltage and VCCB voltage